How to choose the right ATV size
Content
Choosing the right size for your bike must meet certain criteria. Follow this guide for the most important things.
The Importance of ATV Sizing
ATV size is of paramount importance when choosing this ATV.
Having a good sized mountain bike means:
- have more comfort,
- improve your productivity
- reduce the risk of injury
ATV Anatomy Reminders
Everyone has a different size and anatomy. It's the same with most ATVs.
An ATV usually consists of:
- saddle
- frame
- rudder (rudder)
- fork or steering
- broadcast
- wheels
The specifics of determining the dimensions of the ATV
The size of the bike matches at seat tube height... The measurement is taken between the bottom. This is where things get complicated because there is no standard. Each builder has his own way of measuring the height of the frame. Mountain bikes are sized from the center of the bottom bracket to the top of the seat tube. Always check the dimensions or consult your specialist store for advice.
Measure yourself!
Take off your shoes and stand with your feet 15-20 cm apart. Measure the height from the floor to meeting your feet.
Another way is to go to a specialty store and do a posture test. The seller can help you through this process.
Frame size
A frame that is too large or too small can be painful and you will not be able to control your bike during technical transitions.
The size of your bike frame is an important element that determines your position for greater efficiency and comfort. Therefore, it is the length of your legs that will determine the height of the ideal frame. Therefore, it is necessary to measure the perineum.
There are usually three frame formats available on the market: S, M, L, or XL.
The measurement is taken from the center of the BB along the seat tube to the top edge of the top tube of the frame.
However, there are two key points to watch out for. Indeed, it is quite possible that you have long legs and a small trunk, or vice versa. This is one of the reasons for choosing the correct posture adjustment on your bike. This is after, of course, the frame corresponding to the length of your legs has been determined.
| Moutain Biking | |||||||
| Rider height (in cm) | 152-162 | 163-168 | 169-174 | 175-178 | 179-182 | 183-188 | 189-200 |
| Inner seam | 68-74 | 75-77 | 79-81 | 82-83 | 84-86 | 87-90 | 91-94 |
| Bike size (inches) | 14 | 16 | 18 | 18.5 | 20 | 21 | 22 |
| Bike size | 38 | 41 | 45 | 46 | 50 | 52 | 55 |
| Bike size | XS | S | M | M / L | L | L / XL | XL |
What is the width of the hanger?
Sometimes, due to your build or riding style, wider than average handlebars can be a good choice. As the booms expand, this provides more maneuverability, but slows down the rate of change of direction. This option is beneficial in the case of rough terrain.
The wider hanger also makes breathing easier as it encourages you to open your chest more. Once you find a handlebar of a suitable width, work on the placement of the lever and brake. Try to adjust them so that your wrist does not bend at an uncomfortable angle, which leaves less room for maneuver.
Adjust the saddle height
An easy way to determine if you are at the right height is to turn your foot vertically, foot horizontally, put your heel on the pedal, your foot should be straight. And the foot in the normal position should be slightly bent.
The longer bar usually pulls the person forward and straightens the back. this reduces handling and improves front wheel traction.
By shortening, the rod moves the rider towards the center of the bike and adds a curvature to the rear, resulting in a more upright stance. Ideally, the rider should have slightly bent elbows when moving straight up, which gives a natural shock absorbing effect to the upper body.
The length and position of the bar also relieves upper body pain. At the same time, the wrists are less strained.
Carriage crank length
Most manufacturers offer MTB cranks from 165mm to 180mm. The right crank length usually depends on the height and notch of the rider. Thus, the little person is comfortable with cranks from 165 to 170 mm. For the average person, 175mm gear works great and taller people can view cranks of the same size.
What is the wheel size?
When it comes to wheel choices, adults have a choice between 3 sizes: 26 ", 27,5" (or 650B) and 29 ". The 26-inch format has been the standard for many years and was replaced by the 27,5 and 29 a few years ago, each with their own advantages.
The larger the wheels, the more efficient the climbs. Therefore, it is easier to maintain a high speed. As a result, trapping paths are made easier by improving the bike's motor function. In addition, the steering is less optimized and requires much more effort on steep climbs.
Mountain bike 27,5 inches lighter
27,5 "wheels are on average only 5% heavier than 26" wheels, and 29 "wheels are 12% heavier. For example, for a 26-inch wheel / tire assembly weighing 1 kg, the same 27,5-inch mount would weigh 50 grams more, and the same 29-inch wheel would weigh 120 grams more. In terms of weight, the 27,5 "MTB is close in lightness to the 26" MTB..
27,5-inch mountain bike has the best performance
A bike's performance depends on two factors:
- the angle of attack of the wheel, which determines the ATV's ability to overcome an obstacle (stone, tree trunk, etc.)
- acceleration that is partially related to the weight and inertia of the wheels.
The larger the wheel diameter, the easier the transition. Test results show that 27,5 '' wheels provide ground clearance is almost the same as 29 "wheels and much better than 26" wheels
The further the moving mass is from the center of rotation, the slower the response to acceleration. For this reason, 29-inch wheels are considered less dynamic. Anyway, The 27,5-inch wheels are similar in acceleration to the 26-inch wheels.while maintaining a 29-inch advantage for crossing.
Therefore, 27,5-inch wheels offer the best compromise in terms of performance.
Conclusion
The criteria for choosing an ATV size is based on the feedback and experience of each after several years of practice. But all of these variables are rider-specific (morphology, size, ride type ...). Some parameters can change from one person to another. Your best bet is to try, or do a posture study, or test with a small iPhone or Android app to help you set up your mountain bike.
